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Cold Advance Relay
- Disconnect harness connector to cold advance relay. Using an ohmmeter, check resistance between relay terminals "D" and "F". See Fig 1. Continuity or a resistance of 20 ohms should be present. If not, replace cold advance relay.
- Using an ohmmeter, check continuity between relay terminals "A" and "E". Continuity should not be present. If continuity is present, replace grounded cold advance relay.
Courtesy of GENERAL MOTORS CORP.